M4.8 earthquake 133 km E of Yamada, Japan
A magnitude 4.8 earthquake struck 133 km E of Yamada, Japan on Tue, Feb 28, 2017, 10:50 AM JST (01:50 UTC), 25 km (16 mi) below the surface.
A larger quake followed: M4.9 190 km ESE of Kamaishi, Japan. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.8 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2017-02-28 01:50:08 UTC
- Depth
- 25.5 km (15.8 mi), shallow
- Epicenter
- 39.289° N, 143.488° E
- Region
- Japan
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Did you feel it?
No one has reported feeling this quake to the USGS.
How well it is located
Reviewed by a seismologist.
- Location uncertainty
- About 8.2 km horizontally, 6.0 km in depth
- Magnitude uncertainty
- ±0.07
- Depth from
- From location
- Station coverage gap
- 138°
- Stations used
- 98
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.8 and up: 5 in the 60 days after this one and 5 in the 30 days before it.
After
- 4.6109 km ENE of Miyako, Japan · 3499 days ago · 32 km deep · 69 km away
- 4.799 km ENE of Miyako, Japan · 3498 days ago · 27 km deep · 72 km away
- 4.4100 km ENE of Miyako, Japan · 3496 days ago · 24 km deep · 73 km away
- 4.9190 km ESE of Kamaishi, Japan · 3488 days ago · 18 km deep · 84 km away
- 4.5125 km E of Yamada, Japan · 3473 days ago · 10 km deep · 15 km away
Before
- 4.7182 km E of Yamada, Japan · 3506 days ago · 25 km deep · 49 km away
- 4.5131 km E of Yamada, Japan · 3506 days ago · 19 km deep · 15 km away
- 4.8137 km E of Yamada, Japan · 3507 days ago · 10 km deep · 10 km away
- 4.5off the east coast of Honshu, Japan · 3510 days ago · 27 km deep · 74 km away
- 4.1141 km E of Yamada, Japan · 3519 days ago · 18 km deep · 20 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event us20008muf. Read Mon, Oct 5, 2026, 2:21 AM UTC.